Malcolm Weir wrote: > > No-one else > seems to care that the valid RDNS maps to a name that's different from the > DNS entry, because the server(s) behind that address handle traffic for > multiple domains, anyway.
Somewhat aside: I don't know where you get the idea that this problem is related to the reverse and forward lookups not matching. In fact, that will virtually never happen the way that you suggest. Systems like tcp_wrappers and ssh do a reverse lookup first and then look up the name that's returned to verify that those two match. The plugin in use verifies that the IP of the connecting system has a reverse entry, that the entry doesn't contain the IP address (as is common on consumer lines), and that it doesn't specifically mention consumer grade connection technology (aka "dialup", even when it's not). Many sites block such connections because the amount of legitimate mail from such connections is dwarfed by the amount of spam and viruses that come from hacked Windows PCs on consumer lines. I stick with RBLs, personally, but I don't think that contacting your provider and asking for a reverse DNS entry of your own is too high a bar to meet. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
